Flexible carbon nanotube--Cu2O hybrid electrodes for li-ion batteries

Anubha Goyal; Arava L M Reddy; Pulickel M Ajayan

doi:10.1002/smll.201002051

Flexible carbon nanotube--Cu2O hybrid electrodes for li-ion batteries

Small. 2011 Jun 20;7(12):1709-13. doi: 10.1002/smll.201002051. Epub 2011 May 16.

Authors

Anubha Goyal¹, Arava L M Reddy, Pulickel M Ajayan

Affiliation

¹ Department of Mechanical Engineering and Materials Science, Rice University, 6100, Main Street Houston, Texas 77005, USA.

PMID: 21574248
DOI: 10.1002/smll.201002051

Abstract

This study demonstrates the formation of a flexible and free-standing carbon nanotube-copper oxide-poly(vinylidene fluoride) (CNT-Cu(2) O-PVDF) nanocomposite and its application as an electrode-separator material for Li-ion batteries. Binder-free hybrid electrodes are obtained by conformally coating CNTs with Cu(2) O via electrodeposition and then embedding the resulting architecture into a porous poly(vinylidene fluoride-hexafluoropropylene) PVDF-HFP-SiO(2) polymer electrolyte membrane. The synergistic presence of high-capacity transition metal oxides and conductive CNTs results in twice the reversible areal capacity of 2.3 mAh cm(-2) as compared to 1.2 mAh cm(-2) for pure CNTs.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Copper / chemistry*
Electric Power Supplies*
Electrodes*
Electroplating
Lithium / chemistry*
Nanotubes, Carbon / chemistry*
Photoelectron Spectroscopy

Substances

Nanotubes, Carbon
Copper
Lithium
cuprous oxide